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Finding the Fourth Proportional to 91,462.60, 137,129.10 and 41,566.60

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Solution

The fourth proportional to 91,462.60, 137,129.10 and 41,566.60 is: 62,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,462.60 : 137,129.10 = 41,566.60 : x
  2. Step 2: Convert to fraction form
    91,462.60/137,129.10 = 41,566.60/x
  3. Step 3: Cross multiply
    91,462.60x = 137,129.10 × 41,566.60
  4. Step 4: Simplify right side
    91,462.60x = 5,699,990,448.06
  5. Step 5: Solve for x
    x = 5,699,990,448.06/91,462.60
  6. Step 6: Final answer
    x = 62,320.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.